Marine Engine Repower of the Tug Boat NavigatorThis project will improve air quality in the New England region by reducing emissions from in-use diesel engines. Funding from the Diesel Emissions Reduction Act (DERA) is for CLF Ventures, Inc. which has partnered with Riverside Marine Construction Inc. The objective of this grant is to reduce diesel emissions through the replacement of two Tier 1 marine propulsion engines and two Tier 0 generator sets with engines meeting Tier 3 marine engine standards.